Friday, October 28, 2011

Friday Fun: Five Gross and Goofy Body Facts

  • Messages travel along your nerves at up to 200 miles per hour.

  • Most of your cells live a few hours, days, or weeks. But some brain cells last a lifetime—and that’s lucky for you. Once they’re gone, you can’t replace them.

  • When nerves get squashed, they can’t send messages to your brain. And your foot “falls asleep.” When you stand up, your foot will tingle. It might even burn. But in just a few seconds, everything will be back to normal.

  • Whenever you run a race, jump rope, or ride your bike, you’re boosting your brainpower. After exercising, your mind is more settled. You feel better, and you can focus your attention more easily.

  • For thousands of years people all over the world thought the heart—not the brain—was the center of thoughts and feelings. It wasn’t until the 1950s that the American brain surgeon Wilder Penfield discovered which areas of the brain control each part of our bodies.
    Looking for more Gross and Goofy Body facts? Check out my book You’ve Got Nerve: The Secrets of the Brain and Nerves. It’s full of weird, wacky, strange, and surprising information about your body and the bodies of other animals.

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